Numerical investigations on static and dynamic responses of reinforced concrete sub-assemblages under progressive collapse

Phạm, Anh Tuấn; Tan, Kang Hai; Yu, Jun

doi:10.1016/j.engstruct.2016.07.042

Cited by 124 publications

(68 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The structural behavior of RC frame (beam-column) structures under a column removal scenario has been studied analytically (Alogla et al 2017;Li et al 2011;Li et al 2014;Qian and Li 2013), experimentally (Lu et al 2017;Ren et al 2016;Xiao et al 2015;Yi et al 2008) and numerically (Kim et al 2009;Pham et al 2017;Pham et al 2016) to some extent. Fewer published studies are pertinent to the progressive collapse of RC flat-plate structures.…”

Section: Existing Work On Progressive Collapse Of Rc Flat Platesmentioning

confidence: 99%

Load Transfer and Collapse Resistance of RC Flat Plates under Interior Column Removal Scenario

et al. 2018

View full text Add to dashboard Cite

Reinforced concrete (RC) flat-plate structures are vulnerable to punching shear failure at their slab-column connections, potentially leading to a catastrophic progressive collapse. In practice, the slab-column connection above an interior column, removed due to abnormal loads, may be subjected to a concentrated downward force due to the absence of the supporting column and further being pushed due to different live load intensities on individual stories. This force is different to the full design load that the column withstands in normal situation and, combined to the gravity load acting on the slab, may cause punching shear failure at the interior slabcolumn connection. This will further trigger failure propagation to the surrounding slab-column connections. This paper presents the experimental tests performed on two identical large scale 2×2-bay RC flat-plate specimens under an interior column removal scenario. A 5 kPa uniformly distributed load was applied first to the slab followed by an incremental concentrated force imposed on the slab-column connection above the removed interior column. The complete collapse resistant behavior and load redistribution pattern of the specimens were investigated and are reported herein. Results show that more than 90% of the applied concentrated force is solely distributed to the four nearest adjacent columns. Three load carrying mechanism phases, in form of flexural, tensile membrane, and a combination of one-way catenary and dowel actions can be distinguished in resisting the applied concentrated load.

show abstract

Section: Existing Work On Progressive Collapse Of Rc Flat Platesmentioning

confidence: 99%

Load Transfer and Collapse Resistance of RC Flat Plates under Interior Column Removal Scenario

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Authorities and regulators have been led to conceive and release several guidelines, particularly in the United States. Besides research studies that can be referred to as background information, other efforts and contributions have stemmed from the application of standard analysis procedures and standardized design methods …”

Section: Introductionmentioning

confidence: 99%

Performance limit states for progressive collapse analysis of reinforced concrete framed buildings

Parisi

Scalvenzi

Brunesi

2018

Structural Concrete

View full text Add to dashboard Cite

The definition of performance limit states for progressive collapse design and assessment of civil structures is an open issue and deserves special attention in view of future building codes and standards. In this study, the main findings of a multilevel sensitivity analysis are presented to characterize the progressive collapse capacity of a selected class of modern European buildings having a reinforced concrete framed structure. After that a group of capacity model properties are assumed as random variables on the basis of earlier studies, the sensitivity of both ultimate load capacity and corresponding maximum and residual drifts to the ultimate steel strain and location of column-removal scenario is assessed. Then, the influence of the capacity model properties on maximum drift demand corresponding to a codecompliant design gravity load is evaluated. Finally, five performance limit states associated with increasing levels of damage are introduced and the corresponding load capacity is quantified under varying capacity model properties. Analysis results indicate a high sensitivity to the ultimate steel strain, column location in plan, beam span and yield steel strength. K E Y W O R D Scolumn-removal scenarios, nonlinear time history analysis, performance limit states, progressive collapse, RC framed buildings

show abstract

“…The level of permanent strain was significantly lower in the reinforced masonry walls, shown its ability to prevent progressive collapse [37]. Lu et al [38] and Pham et al [39] evaluated the behavior of slabs in the occurrence of a progressive collapse. These authors concluded that the residual strength of slabs, given by membrane mechanisms contribute to the resistance of progressive collapse.…”

Section: Current Researchmentioning

confidence: 99%

Discussion about progressive collapse of masonry buildings

Felipe

Haach

2019

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

ResumoMost standards indicate the need of the evaluation of abnormal loads in the structural design, but in general, they do not provide many details about these actions and how to consider them in the design. The consequence of not considering these actions may be to the progressive collapse of the structure. This type of failure can be avoided by design of elements with sufficient robustness to control possible localized damage, ensuring adequate time for emergency measures to be taken. This work aims to discuss the progressive collapse and the behavior of masonry buildings subject to abnormal loads. An extensive literature review is carried out, highlighting the main procedures and strategies to mitigate this issue and the guidelines available in the standards. It is concluded that there is still an absence of works that deal with this kind of action in masonry buildings.A maioria dos códigos normativos cita a necessidade da avaliação de ações excepcionais no projeto de estruturas, porém sem fornecer muitos detalhes de quais seriam estas ações e como considerá-las. A consequência da não consideração destas ações pode levar ao colapso progressivo da estrutura. Este tipo de ruína pode ser evitado projetando-se estruturas com robustez suficiente para controlar possíveis danos localizados, proporcionando tempo suficiente para que medidas de emergência sejam realizadas. Este trabalho tem como objetivo discutir o colapso progressivo e o comportamento de edifícios em alvenaria estrutural sujeitos a ações excepcionais. Para tal, uma extensa revisão teórica é realizada, destacando os principais procedimentos e estratégias para mitigação dessa problemática e as diretrizes de projeto disponíveis nos códigos normativos. Conclui-se que ainda faltam trabalhos específicos que tratam sobre as ações excepcionais em edifícios de alvenaria estrutural.Palavras-chave: alvenaria, danos acidentais, colapso progressivo, robustez.

show abstract

Numerical investigations on static and dynamic responses of reinforced concrete sub-assemblages under progressive collapse

Cited by 124 publications

References 11 publications

Load Transfer and Collapse Resistance of RC Flat Plates under Interior Column Removal Scenario

Load Transfer and Collapse Resistance of RC Flat Plates under Interior Column Removal Scenario

Performance limit states for progressive collapse analysis of reinforced concrete framed buildings

Discussion about progressive collapse of masonry buildings

Contact Info

Product

Resources

About